IQC may refer to:
Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario, Canada Instituto Questão de Ciência, a Brazilian non-profit organization International Quizzing Championships, a multi-disciplinary quiz event Itaquaquecetuba (CPTM) (station code: IQC), a train station in Itaquaquecetuba, São Paulo, Brazil
See also IQCE, IQ domain-containing protein E